Interestingly, Asus has no new ZenBook models to show at this year's CES meaning the OEM is likely saving some announcements for later this year. Instead, the manufacturer will kick off the new year with refreshed Zephyrus and VivoBook models.
https://www.notebookcheck.net/Asus-VivoBook-S13-S15-gets-refreshed-with-Comet-Lake-U-Ice-Lake-U-and-a-thinner-look.449307.0.html